Brake cooling mechanism



May 2, 1933. L. A. BODE BRAKE COOL-ING MECHANISM Filed June 24, 1951 JE. ,/fz

'INVENTOR Lamy/7. 0de, .BYy/LU7 r H45* AITORNEYS Patented May 2, 1933,UNITED `STATES PATENTl lOFFICE i LOUIS A. BODE, OF NORTH PELEAI, NEWYORK, ASSIGNOB T0 INTERNATIONAL KOTOR COMPANY, OF NEW YORK, N. Y., ACORPORATION-OF DELAWARE Bnaxn oooLING Macmmsu' e i Application mea :unea4,

The present invention relates to brake mechanisms and embodies, morespeciically, an improved brake mechanism,fwhere1n a coolin device isembodied to improve the operatlon thereof.

It is a matter of common knowled Vthat the air surrounding the brakedrum 1n.fcer tain forms of wheels stagnates and the circulation thereofis poor, thus reduclng the cooling effect upon the brake drum .whichmight otherwise be obtained wlth a ycirculation of air about theksurface of the same. An object of the present invention, accordingly, isto provlde a brakeconstructron, wherein a device is embodied forpromoting the air circulation about the drum .and thus improving thecooling thereof during operation.

A further object of the invention 1s provide a device for improving theair circulation about a brake drum such devicebemg readily applied to arelatively stationary part of the brake mechanism whereby agitation ofthe air about the brake drum 1s effected. l

The attainment of the foregoing objects is had by the provision of oneor more fingers or blades which arek secured to the brake spider orother stationar portion of the brake mechanism, such lades proJectinover the drum and extending into the pat of active air whereby the sameis deflected and directed over the drum to agitate'the air in contacttherewith.

Further objects, not specifically enumerated above, will be apparent asthe invention is described in greater detail in connectlon with theaccompanying drawing, wherein:

Figure 1 is a view in section taken through a wheel and brake mechanismprovided with a deflecting or cooling device constructed in accordancewith the present invention.

Figure 2 is a plan view ofthe brakedrum and cooling device shown inFigure 1.

Figure 3 is a view similar to Figurek k1,

showing an improved form of the invention.V

Referring to the above drawing, the hub of a wheel is shown at 10 andcarnes a wheel spider 11 upon which a rim 12 and tire 13 are mounted. A.fiange 14, formed on the 1931. serial no. 546,446.

wheel' hub carries a brake drum 15 which is f preferably formed' withcircumferential ridges 16 to permit the cooling thereof.

Within the vbrake drum, brake shoes 17 are mounted, the specificmounting of these shoes and operating mechanism therefor forming no partof the present invention. A brake spider 18 is mounted upon a relativelystationary portion of the vehicle and may mount the brake shoes andoperating mechanism in any well known fashion in accordance withstandard practice.'

Uponthe outer periphery of the spider18w, oneor morebrackets 19 aresecured, as by bolts 20. The brackets 19 extend upwardly past the openside of the brake drum and have formed integrally therewith a blade orfinger 21 which projects over the cylindrical surface of the drum 15.KVReinforcing and strengthening webs 22 may be provided and the plane ofthe blade 21 is lpreferably at an angle to they axis of the brake drumas shown in Figure 2. Downwardly depending portions 23 are provided tolie between the rib 16 and thus effect complete agitation of the airtherebetween.

It will thus be seen that as the vehicle moves, air will be deflected bythe blade 21 and directed over the surface of the brake drum, themovement of the air in proximity to such drum being quite active andpromoted by the deilecting blade. Not only will fresh and cool air bedirected over the .surface of the drum, but the defiector or/blade willalso serve to direct the heated air outwardly and 'io Y thus promoteeiiicient circulation of the air y about the drum.

In the construction shown .in Figure 3, the blade 21 is provided with aneven lower edge and isadapted to deflect the air circulating about thedrum and above the ridges 16.

While the invention has been described With specific reference to theaccompanyingloeI ing over the drum to promote circulation of air aboutthe brake drum.

2. In combination with a brake drum and a relatively stationary brakeelement, a bracket mounted on the stationary element, and a deiectorblade on the bracket and projecting over the drum at an angle to theaxis thereof to romote circulation of air about the brake rum.

3. In combination with a brake drum havin? an external cylindricalportion and a re atively stationary brake element, a bracket mounted onthe stationary element, a deiector blade on the bracketprojecting overthe cylindrical portion of the drum and at an angle to the axis thereofto promote circulation of air about the brake drum.

4. In combination with a brake drum having an external cylindricalportion formed with circumferential ribs and a relatively stationarybrake element, a bracket mounted on the stationary element, a deilectorblade on the bracket projecting over the cylindrical portion of the drumand at an angle to the axis thereof and formed with fingers to liebetween the circumferential ribs on the drum to promote circulation ofair about the brake drum.

This specication signed this` 22nd day of June A.. 1931.

LOUIS A. BODE.

